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Issued at 28/07/2014 6:39am. Valid till 30/07/2014 6pm

Queenstown

Mountain
Current avalanche advisory
High Alpine

Above 2000 meters

Alpine

1000 to 2000 meters

Sub Alpine

Below 1000 meters

Avalanche Danger Scale
Avalanche Danger Scale
Report TutorialPrint Reporthear report

Primary Avalanche Danger

Dangerous Aspects
high
Danger Rose
2
Highest Danger Rating
Likelihood
indicator
gauge
Certain
Likely
Unlikely
Size
indicator
gauge
Largest
Small
Trend
indicator
gauge
Increasing
No change
Decreasing
Time of day
clock
Time of day
All day
Alpine level
High Alpine: Above 2000m
Alpine: 1000 to 2000m
Low Alpine: Below 1000m
Description:
Last weeks strong SW winds redistributed snow in all directions. Areas of stiff snow (windslab) has developed on many aspects. Watch for large pillows of stiff snow and be cautious of steep terrain on all aspects and elevations, there is a weak layer buried above a slick sliding surface in the snowpack and it is still reactive to overloading, the weight of a single skier/boarder triggered several avalanches last week. Events could be (and have been) large travelling long distances due to the icy base. Terrain traps where significant quantities of new snow can gather should be avoided. Windward slopes have been stripped of snow by the SW flow. We are heading in to a different weather pattern this week with significant snowfalls predicted. Don't go backcountry by yourself and carry all safety gear (transceiver, shovel and probe). Remember anywhere outside a ski area boundary is uncontrolled avalanche terrain !

Recent Avalanche Activity

Recent Avalanche Activity
Backcountry users triggered several avalanches last week. Events were running on an icy melt/freeze layer buried within the snowpack. The size of the avalanche has varied depending on how much wind deposited snow sits above this layer.

Current Snowpack Conditions

Current Snowpack Conditions
Strong to gale force SW winds last week produced windslab conditions on several aspects, weak layers are buried within the stiff snow and in some areas this is quite deep. At lower elevations and ridge crest hard icy surfaces have been exposed by the winds. The snowpack below 1700 m is quite shallow, watch hidden hazards (rocks, hollows, etc) buried under a thin coverage of snow, use caution at lower elevations.

Mountain Weather

Mountain Weather
A mainly fine start to the day, with cloud slowly building. Expect snow showers late in the day. A change in wind direction today with NW winds building and becoming gale force this afternoon. The freezing level rising to 1600 m today.


MetService
For more information go to: http://www.metservice.com/mountain/index

Forecast by Chris Cochrane

Mountain Safety Council
Avalanche Forecast Regions:
Mountain Safety Council managed websites
Mountainf Safety Council websiteAdventure Smart websiteNew Zealand Avalanche CenterNational Incedent Database website